diff --git a/core/includes/config.inc b/core/includes/config.inc
index 369a0d1..abc64e7 100644
--- a/core/includes/config.inc
+++ b/core/includes/config.inc
@@ -24,7 +24,7 @@ use Drupal\Core\Config\StorageInterface;
 function config_install_default_config($type, $name) {
   $config_dir = drupal_get_path($type, $name) . '/config';
   if (is_dir($config_dir)) {
-    $source_storage = new FileStorage(array('directory' => $config_dir));
+    $source_storage = new FileStorage($config_dir);
     $target_storage = drupal_container()->get('config.storage');
     $null_storage = new NullStorage();
 
@@ -137,7 +137,7 @@ function config_sync_changes(array $config_changes, StorageInterface $source_sto
  */
 function config_import() {
   // Retrieve a list of differences between staging and the active store.
-  $source_storage = new FileStorage(array('directory' => config_get_config_directory(CONFIG_STAGING_DIRECTORY)));
+  $source_storage = new FileStorage(config_get_config_directory(CONFIG_STAGING_DIRECTORY));
   $target_storage = drupal_container()->get('config.storage');
 
   $config_changes = config_sync_get_changes($source_storage, $target_storage);
@@ -219,7 +219,7 @@ function config_import_invoke_owner(array $config_changes, StorageInterface $sou
 function config_export() {
   // Retrieve a list of differences between the active store and staging.
   $source_storage = drupal_container()->get('config.storage');
-  $target_storage = new FileStorage(array('directory' => config_get_config_directory(CONFIG_STAGING_DIRECTORY)));
+  $target_storage = new FileStorage(config_get_config_directory(CONFIG_STAGING_DIRECTORY));
 
   $config_changes = config_sync_get_changes($source_storage, $target_storage);
   if (empty($config_changes)) {
diff --git a/core/includes/update.inc b/core/includes/update.inc
index 5582bb4..9dd8456 100644
--- a/core/includes/update.inc
+++ b/core/includes/update.inc
@@ -1056,7 +1056,7 @@ function update_variables_to_config($config_name, array $variable_map) {
   $module = strtok($config_name, '.');
 
   // Load and set default configuration values.
-  $file = new FileStorage(array('directory' => drupal_get_path('module', $module) . '/config'));
+  $file = new FileStorage(drupal_get_path('module', $module) . '/config');
   if (!$file->exists($config_name)) {
     throw new ConfigException("Default configuration file $config_name for $module extension not found but is required to exist.");
   }
diff --git a/core/lib/Drupal/Core/Config/FileStorage.php b/core/lib/Drupal/Core/Config/FileStorage.php
index d96af7e..c068ab8 100644
--- a/core/lib/Drupal/Core/Config/FileStorage.php
+++ b/core/lib/Drupal/Core/Config/FileStorage.php
@@ -26,11 +26,11 @@ class FileStorage implements StorageInterface {
   /**
    * Implements Drupal\Core\Config\StorageInterface::__construct().
    */
-  public function __construct(array $options = array()) {
-    if (!isset($options['directory'])) {
-      $options['directory'] = config_get_config_directory();
+  public function __construct($directory = '') {
+    if (empty($directory)) {
+      $directory = config_get_config_directory();
     }
-    $this->options = $options;
+    $this->directory = $directory;
   }
 
   /**
@@ -40,7 +40,7 @@ class FileStorage implements StorageInterface {
    *   The path to the configuration file.
    */
   public function getFilePath($name) {
-    return $this->options['directory'] . '/' . $name . '.' . self::getFileExtension();
+    return $this->directory . '/' . $name . '.' . self::getFileExtension();
   }
 
   /**
@@ -99,8 +99,8 @@ class FileStorage implements StorageInterface {
    */
   public function delete($name) {
     if (!$this->exists($name)) {
-      if (!file_exists($this->options['directory'])) {
-        throw new StorageException($this->options['directory'] . '/ not found.');
+      if (!file_exists($this->directory)) {
+        throw new StorageException($this->directory . '/ not found.');
       }
       return FALSE;
     }
@@ -149,11 +149,11 @@ class FileStorage implements StorageInterface {
   public function listAll($prefix = '') {
     // glob() silently ignores the error of a non-existing search directory,
     // even with the GLOB_ERR flag.
-    if (!file_exists($this->options['directory'])) {
-      throw new StorageException($this->options['directory'] . '/ not found.');
+    if (!file_exists($this->directory)) {
+      throw new StorageException($this->directory . '/ not found.');
     }
     $extension = '.' . self::getFileExtension();
-    $files = glob($this->options['directory'] . '/' . $prefix . '*' . $extension);
+    $files = glob($this->directory . '/' . $prefix . '*' . $extension);
     $clean_name = function ($value) use ($extension) {
       return basename($value, $extension);
     };
diff --git a/core/lib/Drupal/Core/Config/NullStorage.php b/core/lib/Drupal/Core/Config/NullStorage.php
index ea21be1..09ae3e9 100644
--- a/core/lib/Drupal/Core/Config/NullStorage.php
+++ b/core/lib/Drupal/Core/Config/NullStorage.php
@@ -22,11 +22,6 @@ namespace Drupal\Core\Config;
  * This also can be used for testing purposes.
  */
 class NullStorage implements StorageInterface {
-  /**
-   * Implements Drupal\Core\Config\StorageInterface::__construct().
-   */
-  public function __construct(array $options = array()) {
-  }
 
   /**
    * Implements Drupal\Core\Config\StorageInterface::read().
diff --git a/core/lib/Drupal/Core/Config/StorageInterface.php b/core/lib/Drupal/Core/Config/StorageInterface.php
index a466538..2d3dcda 100644
--- a/core/lib/Drupal/Core/Config/StorageInterface.php
+++ b/core/lib/Drupal/Core/Config/StorageInterface.php
@@ -16,15 +16,6 @@ namespace Drupal\Core\Config;
 interface StorageInterface {
 
   /**
-   * Constructs the storage controller.
-   *
-   * @param array $options
-   *   An associative array containing configuration options specific to the
-   *   storage controller.
-   */
-  public function __construct(array $options = array());
-
-  /**
    * Reads configuration data from the storage.
    *
    * @param string $name
diff --git a/core/modules/config/lib/Drupal/config/Tests/ConfigImportTest.php b/core/modules/config/lib/Drupal/config/Tests/ConfigImportTest.php
index 0c1fe68..cbdf2dc 100644
--- a/core/modules/config/lib/Drupal/config/Tests/ConfigImportTest.php
+++ b/core/modules/config/lib/Drupal/config/Tests/ConfigImportTest.php
@@ -65,7 +65,7 @@ class ConfigImportTest extends WebTestBase {
     $name = 'config_test.system';
     $dynamic_name = 'config_test.dynamic.default';
     $active_storage = new DatabaseStorage();
-    $staging_storage = new FileStorage(array('directory' => config_get_config_directory(CONFIG_STAGING_DIRECTORY)));
+    $staging_storage = new FileStorage(config_get_config_directory(CONFIG_STAGING_DIRECTORY));
 
     // Verify the default configuration values exist.
     $config = config($name);
@@ -107,7 +107,7 @@ class ConfigImportTest extends WebTestBase {
   function testNew() {
     $name = 'config_test.new';
     $dynamic_name = 'config_test.dynamic.new';
-    $staging_storage = new FileStorage(array('directory' => config_get_config_directory(CONFIG_STAGING_DIRECTORY)));
+    $staging_storage = new FileStorage(config_get_config_directory(CONFIG_STAGING_DIRECTORY));
 
     // Export.
     config_export();
@@ -153,7 +153,7 @@ class ConfigImportTest extends WebTestBase {
   function testUpdated() {
     $name = 'config_test.system';
     $dynamic_name = 'config_test.dynamic.default';
-    $staging_storage = new FileStorage(array('directory' => config_get_config_directory(CONFIG_STAGING_DIRECTORY)));
+    $staging_storage = new FileStorage(config_get_config_directory(CONFIG_STAGING_DIRECTORY));
 
     // Export.
     config_export();
diff --git a/core/modules/config/lib/Drupal/config/Tests/Storage/FileStorageTest.php b/core/modules/config/lib/Drupal/config/Tests/Storage/FileStorageTest.php
index 0fd2ba4..3c617c8 100644
--- a/core/modules/config/lib/Drupal/config/Tests/Storage/FileStorageTest.php
+++ b/core/modules/config/lib/Drupal/config/Tests/Storage/FileStorageTest.php
@@ -25,7 +25,7 @@ class FileStorageTest extends ConfigStorageTestBase {
   function setUp() {
     parent::setUp();
     $this->storage = new FileStorage();
-    $this->invalidStorage = new FileStorage(array('directory' => $this->configDirectories[CONFIG_ACTIVE_DIRECTORY] . '/nonexisting'));
+    $this->invalidStorage = new FileStorage($this->configDirectories[CONFIG_ACTIVE_DIRECTORY] . '/nonexisting');
 
     // FileStorage::listAll() requires other configuration data to exist.
     $this->storage->write('system.performance', config('system.performance')->get());
diff --git a/core/modules/system/lib/Drupal/system/Tests/Module/ModuleTestBase.php b/core/modules/system/lib/Drupal/system/Tests/Module/ModuleTestBase.php
index 1698737..36f4be3 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Module/ModuleTestBase.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Module/ModuleTestBase.php
@@ -99,7 +99,7 @@ abstract class ModuleTestBase extends WebTestBase {
     if (!is_dir($module_config_dir)) {
       return;
     }
-    $module_file_storage = new FileStorage(array('directory' => $module_config_dir));
+    $module_file_storage = new FileStorage($module_config_dir);
     $names = $module_file_storage->listAll();
 
     // Verify that the config directory is not empty.